(The Dalles, OR) -- Crews remain on the scene of a brush fire west of The Dalles that forced evacuations and closed I-84 Wednesday afternoon. Fire officials say the blaze is 70-percent contained as of last night. The fire downed power lines across the freeway and prompted Level 3 evacuations for nearby apartments, a mobile home park and the Columbia Gorge Discovery Center & Museum. The evacuation orders were downgraded to Level 1 later last night, allowing residents to return home. The freeway was reopened after the power lines were removed. The cause of the fire remains under investigation.